38 lines
1.3 KiB
LLVM
38 lines
1.3 KiB
LLVM
; RUN: llc -O0 < %s -mtriple=x86_64-unknown | FileCheck %s
|
|
; This was extracted from a swift debugger stepping testcase and checks that the
|
|
; fold (zext (load x)) -> (zext (truncate (zextload x)))
|
|
; rule propagates the SDLoc of the load to the zextload.
|
|
|
|
; CHECK: .loc {{.*}} main.swift:100
|
|
; CHECK-NOT: .loc
|
|
; CHECK: .loc {{.*}} main.swift:200
|
|
; CHECK-NOT: .loc
|
|
; CHECK: .loc {{.*}} main.swift:300
|
|
; CHECK-NOT: .loc
|
|
declare void @foo(double)
|
|
|
|
define i32 @zext_load(i32* %arg) !dbg !30 {
|
|
%1 = bitcast i32* %arg to i8*
|
|
%2 = getelementptr inbounds i8, i8* %1, i32 1
|
|
%3 = load i8, i8* %2, align 1, !dbg !100
|
|
%4 = uitofp i8 %3 to double, !dbg !200
|
|
call void @foo(double %4), !dbg !200
|
|
%5 = zext i8 %3 to i32, !dbg !300
|
|
ret i32 %5
|
|
}
|
|
!llvm.dbg.cu = !{!1}
|
|
!llvm.module.flags = !{!0}
|
|
|
|
!0 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!1 = distinct !DICompileUnit(language: DW_LANG_Swift, file: !3, isOptimized: false, emissionKind: FullDebug)
|
|
!2 = !DIModule(scope: null, name: "test", includePath: "")
|
|
!3 = !DIFile(filename: "main.swift", directory: "/")
|
|
|
|
!30 = distinct !DISubprogram(name: "main", scope: !2, file: !3, line: 1, type: !31, isLocal: false, isDefinition: true, isOptimized: false, unit: !1)
|
|
!31 = !DISubroutineType(types: !32)
|
|
!32 = !{}
|
|
|
|
!100 = !DILocation(line: 100, scope: !30)
|
|
!200 = !DILocation(line: 200, scope: !30)
|
|
!300 = !DILocation(line: 300, scope: !30)
|